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Cushion|Lab Grown|IGI

1.40ct D VVS1 Cushion Lab Grown Diamond

VG • D/VVS1 • IGI LG830620145

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG830620145

Diamond specifications and retailer prices

From $331 SGD
$259 USD
As of October 30, 2026
Save $2,130 SGD (87%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,461 SGD at Helzberg Diamonds · As of October 31, 2026
View at Helzberg Diamonds

About this 1.4ct lab-grown cushion diamond

This 1.4ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG830620145 or 830620145. Listed at 11 retailers as of October 30, 2026, with prices from $331 to $2,461, a $2,130 spread on the same certified stone. Helzberg Diamonds lists it at $2,461. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.40
Carat
D
Colour
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830620145
Dimensions8.29 × 5.58 × 3.76 mm
L/W Ratio1.49
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.29 mm5.58 mm1.40 ctD / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830620145
Side View
Table 60.0%Crown 34.2°Girdle: MED-STKPavilion 35.3°Culet: NoneDepth 67.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $2,461 SGD|Low: $331 SGD|High: $2,493 SGD|Avg: $1,044 SGD
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 11$331 SGD
Retailer 8$419 SGD
Retailer 2$603 SGD
Retailer 7$621 SGD
Retailer 5$683 SGD
Retailer 4$690 SGD
Retailer 9$969 SGD
Retailer 3$1,197 SGD
Retailer 10$1,244 SGD
Retailer 6$2,429 SGD
Helzberg Diamonds$2,461 SGD

3 data points across 11 retailers

11 retailers$331 SGD to $2,461 SGD

A
Cheapest Retailer
-
$331 SGD
$259 USD
Final sale: no returns
A
Retailer 2
-
$419 SGD
£258 GBP
View
A
Retailer 3
-
$603 SGD
€449 EUR
View
A
Retailer 4
-
$621 SGD
$486 USD
View
A
Retailer 5
-
$683 SGD
$534 USD
View
A
Retailer 6
-
$690 SGD
£425 GBP
View
B+
Retailer 7
-
$969 SGD
$758 USD
View
B+
Retailer 8
-
$1,197 SGD
View
B+
Retailer 9
-
$1,244 SGD
$973 USD
View
B
Retailer 10
-
$2,429 SGD
$1,900 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOJGMIGHKL · Oct 31
$2,461 SGD
$1,925 USD
View
10 more retailers have this diamond
Prices start from $331 SGDSave up to $2,130 SGD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.40ct Cushion
$331 SGD